Alert archive / Kansas / Mesoscale Discussions in 2003
Mesoscale Discussion 897
The Storm Prediction Center issued this mesoscale discussion at May 10, 2003, 12:49 AM CDT for 30 counties in Kansas. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- May 10, 2003, 12:49 AM CDT (05:49 UTC)
- Expired
- May 10, 2003, 2:15 AM CDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
All 30 counties
Atchison County, KS, Barber County, KS, Brown County, KS, Butler County, KS, Chase County, KS, Clay County, KS, Cowley County, KS, Dickinson County, KS, Geary County, KS, Harper County, KS, Harvey County, KS, Jackson County, KS, Jefferson County, KS, Kingman County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Morris County, KS, Nemaha County, KS, Ottawa County, KS, Pottawatomie County, KS, Reno County, KS, Rice County, KS, Riley County, KS, Saline County, KS, Sedgwick County, KS, Shawnee County, KS, Sumner County, KS, Wabaunsee County, KS
The radar
The Wichita radar (KICT), 91 km from the middle of the area, began a volume at 05:50 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 5.8 hours before the alert went out and 145 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 173 J/kg
- Mixed-layer CIN
- -412 J/kg
- Mixed-layer LCL
- 1579 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 154 m²/s²
- 0-3 km storm-relative helicity
- 422 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
202 ACUS11 KWNS 100549 SWOMCD SPC MCD 100549 KSZ000-100715- MESOSCALE DISCUSSION 0897 NWS STORM PREDICTION CENTER NORMAN OK 1249 AM CDT SAT MAY 10 2003 AREAS AFFECTED...CNTRL INTO NERN KS CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 100549Z - 100715Z LARGE HAIL THREAT WILL CONTINUE TO INCREASE ACROSS THE AREA OVER THE NEXT FEW HOURS. WW WILL LIKELY BE REQUIRED. REGIONAL RADAR DATA INDICATE TSTMS DEVELOPING OVER S-CNTRL KS FROM N OF P28 TO JUST N OF HUT. LATEST MESOANALYSIS SHOWS SURFACE LOW OVER THE CNTRL OK PNHDL/FAR SWRN KS WITH AN ATTENDANT WARM FRONT THAT EXTENDS EWD ALONG THE KS/OK BORDER S OF ICT AND THEN NEWD TO JUST N OF CNU. PROFILER/VWP NETWORK IS INDICATING A 50-60KT SLY LLJ FROM N-CNTRL TX ACROSS OK WITH ELY 850MB WINDS NOTED AT DDC AND HILLSBORO KS. THEREFORE...IT APPEARS THAT STRONG MOIST/THERMAL ADVECTION OVER SURFACE FRONTAL BOUNDARY AND ENHANCED CONVERGENCE ALONG DEEPER FRONTAL ZONE OVER SRN KS WILL ALLOW ADDITIONAL TSTMS TO DEVELOP ACROSS CNTRL KS OVER THE NEXT 1 TO 3 HOURS. RUC FORECAST SOUNDINGS SUGGEST THAT THESE PROCESSES ARE LEADING TO RAPID DESTABILIZATION FROM SRN KS NEWD INTO NERN KS WITH MUCAPES EXPECTED TO INCREASE TO 2000-2500 J/KG ABOVE SHALLOW BOUNDARY LAYER THROUGH 08Z. SUFFICIENT DEEP-LAYER SHEAR THROUGH THIS ELEVATED BUOYANT LAYER SUGGESTS THE POTENTIAL FOR SUPERCELLS CAPABLE OF PRODUCING LARGE HAIL. A NEW WW WILL LIKELY BE REQUIRED SOON W OF WW0329. ..MEAD.. 05/10/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...EAX...TOP...ICT...DDC... 37119881 37989866 38759805 39309764 39809684 39919591 39759521 39279523 38169611 37119687 37039765
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:45 PM CDT | Tornado Watch | SPC | Butler, Chase, Coffey, Cowley, Elk, Greenwood and 7 more | 5 hr |
| May 9, 7:47 PM CDT | Mesoscale Discussion | SPC | Allen, Bourbon, Chautauqua, Cherokee, Crawford, Labette and 5 more | 88 min |
| May 9, 10:04 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Bourbon, Chautauqua, Cherokee and 20 more | 26 min |
| May 9, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Bourbon, Chautauqua, Cherokee, Coffey and 14 more | 6 hr |
| May 10, 1:15 AM CDT | Severe Thunderstorm Watch | SPC | Atchison, Barber, Brown, Butler, Chase, Clay and 25 more | 5 hr |
| May 10, 2:28 AM CDT | Mesoscale Discussion | SPC | Atchison, Barber, Brown, Butler, Chase, Clay and 25 more | 92 min |
| May 10, 3:05 AM CDT | Tornado Watch | SPC | Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 17 more | 5 hr |
| May 10, 3:15 AM CDT | Severe Thunderstorm Watch | SPC | Atchison, Brown, Doniphan, Douglas, Geary, Jackson and 10 more | 5 hr |
| May 10, 5:27 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Butler, Chase, Chautauqua and 20 more | 93 min |
| May 10, 7:06 AM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Doniphan, Douglas, Geary, Jackson and 10 more | 54 min |
| May 10, 9:16 AM CDT | Mesoscale Discussion | SPC | Chautauqua, Cherokee, Labette, Montgomery, Neosho, Wilson | 3 hr |
| May 10, 10:54 AM CDT | Mesoscale Discussion | SPC | Allen, Bourbon, Cherokee, Crawford, Labette, Linn and 2 more | 66 min |
| May 10, 10:58 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Bourbon, Brown, Coffey and 18 more | 2 hr |
| May 10, 11:35 AM CDT | Tornado Watch | SPC | Linn, Miami | 7 hr |
| May 10, 11:55 AM CDT | Tornado Watch | SPC | Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 1 more | 7 hr |
| May 10, 1:42 PM CDT | Mesoscale Discussion | SPC | Miami | 2 hr |
| May 10, 1:59 PM CDT | Mesoscale Discussion | SPC | Allen, Bourbon, Cherokee, Crawford, Labette, Montgomery and 1 more | 2 hr |
Nearby
Mesoscale Discussions in Kansas, 2003Every mesoscale discussion in 2003
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.